The author monitored the crop damage using remote sensing combined with ground survey. First, the author extracted the snow disaster area using multi-phase BJ-1 multi-spectrum data and MODIS data. At same time, 3 ground teams were send to investigate the crop planting proportion and crop damage ratio. Then, crop damage area was calculated using arable area multiplied by crop planting proportion and crop damage ratio in this paper. The results showed that there were 429.76×10⁴ hm² crops were damaged in Jiangxi, Hubei, Hunan and Guizhou province. Ground survey showed that the main crop-damage area lied in winter wheat and seed rape planting area. The most serious area lied in high-elevate mountain area. For damaged crops, winter wheat was just affected a little because it was in greening stage, and seed rape was effected heavily for in flowing and jointing stage. In southern area of Jiangxi and Hunan province, crop damage area were very small because many cropland were in fallow.